Answer:
white 1: black 3
white 2: black 1
white 3: black 2
Explanation:
white 1: the denominator for the x values so it becomes 1-2=-1 which becomes -1/3x +1/4
White 2: same case as the first so we add 1+2=3 3/3=1 so that makes it x+1/4
white 3: there is only one x values that has 4 as the denominator therefore that makes the answer 3/4x+1/3